The Client Certificates tab contains three types of certificates:
The preferred ones should Premium Certificates are almost always be the Premium Certificatesbest choice. A premium certificate is useful for personal
Client Authentication
Document Signing
Email Encryption
Email Signing
Don't use the Digital Signature Plus certificate; it is just a limited variant of limited Premium.
Email Security Plus offers the possibility to have your private key stored by DigiCert (escrow).
Both Premium Client Certificates and Document Signing Certificates can be use to sign documents. In an Adobe Acrobat environment there is a preference for Document Signing certificates.